[PLC] St Language Five: STL/RET/CMP/ZCP

One: STL/RET/CMP/ZCP

Description: Simple Shun control instructions do not do other instructions.

Control requirements : None

Programming Ladder diagram:

Structured Programming ST Language:

(* Step instruction STL (EN,S); *) SET (M8002,S3); STL (TRUE,S3) m419:=true;out_t (TRUE,TC0,K10); SET (TS0,S20); STL (TRUE,S20); m420:=true;out_t (TRUE,TC1,K15); s3:=ts1; (* Step instruction ret (EN); *) ret (TRUE);(* Compare instruction CMP (EN,S1,S2,D); *) CMP (M37,K100,D51,M38); M421:=m37 and M38; M422:=m37 and M39; M423:=m37 and M40; (* interval comparison ZCP (en,s1,s2,s3,d); *) ZCP (M41,K5,K10,D52,M42); M424:=m41 and M42; M425:=m41 and M43; M426:=m41 and M44; ZCP (M45,K10,K5,D53,M46); M427:=m45 and M46; M428:=m45 and M47; M429:=m45 and M48;

　　

[PLC] St Language Five: STL/RET/CMP/ZCP